Pat Stanton, who is Dean of students at Maranacook Community High School, saw the boy while driving her car, he was walking in the middle of Wing Mills Road in Mt. Vernon.
She pulled over and called 9-1-1. The boy was in Messalonskee stream holding onto the bridge.
She pulled him out of the water and discovered he had special needs. He walked off and tried to climb into a culvert.
She was able to hold onto him and flagged down a motorist to help her.
The boys parents came to the high school to give Pat flowers and thanked her for rescuing their son.
Officials with the Autism Society of Maine say parents of children with developmental disabilities should register their child with their state or local police.
The original article by Vivien Leigh on the WCSH6 News site can be read here along with this video.